Flue gas dust removal equipment for power plant

Abstract

The invention relates to the related technical field of power plant flue gas treatment, in particular to power plant flue gas dust removal equipment which comprises a dust removal tank, an exhaust cavity and a gas inlet cavity are formed in the upper side and the lower side of an inner cavity of the dust removal tank correspondingly, and an exhaust pipe connected with the exhaust cavity and a gas inlet pipe connected with the gas inlet cavity are fixedly installed on the outer wall of the dust removal tank; a plurality of air guide holes are formed in the lower end of the exhaust cavity at equal intervals, a filter screen is arranged in the exhaust cavity, the lower end of the filter screen is attached to the upper ends of the air guide holes, an adjusting cavity is formed in the lower side of the air inlet cavity, a driving motor is fixedly installed in the adjusting cavity, and a driven gear is fixedly installed on the lower side of the rotating disc. And a driving gear engaged with the driven gear is fixedly mounted at the outer end of the driving motor through an output shaft of the driving motor. According to the flue gas dust removal equipment for the power plant, dust in the filter screen can be cleaned, blockage caused by the dust in the filter screen is avoided, and the flue gas treatment effect of the filter screen is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of power plant flue gas treatment, in particular to a power plant flue gas dust removal device. Background Art

[0002] Coal-fired power plants produce a large amount of flue gas during the combustion of coal, which contains a large amount of dust and other harmful substances. If these substances are directly discharged into the atmosphere, they will cause serious pollution to the environment, affect air quality, and endanger human health. Therefore, in order to avoid these harmful impurities from polluting the environment, dust and other impurities need to be filtered and collected through dust removal equipment during the flue gas emission process;

[0003] At present, the flue gas emission speed of power plants is relatively fast, which causes the dust in the flue gas to quickly clog the surface of the filter. As a result, most of the existing dust removal equipment adopts a self-cleaning filter mechanism, that is, through the rotating dust exhaust pipe, the dust exhaust pipe is aligned with each filter, and the pressure difference on both sides of the filter changes to push the dust on the surface of the filter outward to achieve the effect of cleaning the filter. The surface dust forms a blockage on the surface of the filter;

[0004] However, when the existing motor drives the dust exhaust pipe to rotate, its output shaft drives the dust exhaust pipe to rotate at a uniform speed. In order to ensure that a pressure difference can be formed on both sides of the filter, the dust exhaust pipe and the filter need to be completely aligned. This requires the motor to use precise sensors and other control devices to strictly control the rotation angle of the output shaft, which obviously increases the equipment cost, increases the difficulty of operation, and causes great inconvenience. For this reason, we propose a flue gas dust removal equipment for power plants. Summary of the invention

[0005] In order to solve the above problems, the present invention provides a flue gas dust removal device for a power plant.

[0006] The present invention adopts the following technical scheme, a power plant flue gas dust removal equipment, including a dust removal tank, the upper and lower sides of the inner cavity of the dust removal tank are respectively provided with an exhaust chamber and an air intake chamber, an exhaust pipe connected to the exhaust chamber and an air intake pipe connected to the air intake chamber are fixedly installed on the outer wall of the dust removal tank, a plurality of air guide holes are evenly spaced at the lower end of the exhaust chamber, a filter screen is provided in the exhaust chamber, the lower end of the filter screen and the upper end of the air guide hole are in contact with each other, an adjusting chamber is provided at the lower side of the air intake chamber, a dust guide pipe is rotatably installed in the adjusting chamber, the dust guide pipe is S-shaped, a dust guide funnel is fixedly installed on the upper end of the dust guide pipe, and the dust guide funnel is positioned at the lower end of the air guide hole Corresponding to the arrangement, a dust guiding cavity is provided on the periphery of the dust guiding tube, a dust exhaust pipe passes through the adjusting cavity, a dust guiding frame is fixedly installed on the inner end of the dust exhaust tube, the dust guiding cavity is rotatably installed in the dust guiding frame, a groove wheel is fixedly installed on the periphery of the dust guiding tube, radial grooves corresponding to the number of air guide holes are provided on the periphery of the groove wheel, a rotating disk is rotatably installed in the adjusting cavity, a round pin connected to the radial groove is fixedly installed on the periphery of the upper end of the rotating disk, a driving motor is fixedly installed in the adjusting cavity, a driven gear is fixedly installed on the lower side of the rotating disk, and a driving gear meshing with the driven gear is fixedly installed on the outer end of the driving motor through its output shaft.

[0007] As a further description of the above technical solution: an inner positioning bracket is fixedly installed on the outer periphery of the upper end of the air guide hole, an installation cavity corresponding to the position of each air guide hole is opened at the upper end of the exhaust cavity, a positioning block is inserted and installed in the installation cavity, and an outer positioning bracket is fixedly installed on the lower end of the positioning block.

[0008] As a further description of the above technical solution: a counterweight ring is fixedly installed at the lower end of the filter screen, and a positioning ring that fits with the upper end of the counterweight ring is fixedly installed at the lower end of the external positioning bracket.

[0009] As a further description of the above technical solution: a concave cavity is opened at the upper end of the positioning block, a first positioning hole is opened at the periphery of the concave cavity, a second positioning hole is opened at the inner wall of the installation cavity, and positioning rods are inserted and installed in the first positioning hole and the second positioning hole.

[0010] As a further description of the above technical solution: a rotating rod is rotatably installed in the concave cavity, and a first rotating plate and a second rotating plate are fixedly installed on the upper and lower sides of the outer periphery of the rotating rod respectively, the upper end of the first rotating plate and the upper end of the concave cavity are in contact with each other, a sliding rod is fixedly installed at the lower end of the positioning rod, and an arc-shaped sliding groove is provided on the upper end of the second rotating plate to be slidably connected to the sliding rod.

[0011] As a further description of the above technical solution: the lower end of the positioning rod is tilted inward, a positioning hole is opened in the rotating rod, a coil spring connected to the positioning hole is sleeved on the outer periphery of the rotating rod, a positioning clamping plate is fixedly installed on the inner wall of the concave cavity, and the outer end of the coil spring is clamped with the positioning clamping plate.

[0012] As a further description of the above technical solution: a movable plate is slidably installed in the exhaust cavity, a through cavity is opened on the periphery of the movable plate, a cleaning brush is fixedly installed on the inner wall of the through cavity, and the cleaning brush is in contact with the periphery of the filter screen.

[0013] As a further description of the above technical solution: a limiting slide rail is fixedly installed inside, and a limiting sliding block slidably connected to the limiting slide rail is fixedly installed on the periphery of the movable plate.

[0014] As a further description of the above technical solution: a second gear is rotatably installed at the bottom of the inner cavity of the regulating chamber, the dust guide tube is rotatably installed at the upper end of the second gear, a reciprocating screw is fixedly installed on the upper end of the second gear, a protrusion slidably connected to the periphery of the reciprocating screw is fixedly installed in the middle of the movable plate, and a first gear meshingly connected to the second gear is fixedly installed at the lower end of the rotating disk.

[0015] The present invention provides a power plant flue gas dust removal device through improvement, which has the following improvements and advantages compared with the prior art:

[0016] First: through the plug-in connection between the round pin and the radial groove, the rotating rotating disk can drive the groove wheel to rotate intermittently, thereby ensuring that the dust guide pipe is aligned with each air guide hole, ensuring that a pressure difference can be formed on the inside and outside of each filter. In conjunction with the dust guide frame, dust guide cavity and dust exhaust pipe, the dust on the filter can be discharged outward, thereby achieving the effect of cleaning the filter, avoiding blockage on the surface of the filter, and improving the filtering effect of the filter on dust.

[0017] Second: an installation cavity is set up, and the filter can be installed and disassembled and positioned by cooperating with the external positioning bracket and the internal positioning bracket. The positioning block and the external positioning bracket can be positioned through the plug-in connection between the positioning rod and the first positioning hole and the second positioning hole, so as to achieve the effect of positioning the filter and ensure the filtering effect of the filter on dust.

[0018] Third: through the sliding connection between the reciprocating screw and the movable plate, and a cleaning brush is arranged in the through cavity, the rotating reciprocating screw can drive the cleaning brush to reciprocate up and down around the periphery of the filter, and the dust adhering to the inner wall of the filter can be pushed inward to the middle of the inner cavity of the filter, thereby ensuring the dust recovery effect of the dust guide pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further explained below in conjunction with the accompanying drawings and embodiments:

[0020] Figure 1 A schematic diagram of the external structure of a dust removal tank provided in an embodiment of the present invention;

[0021] Figure 2A schematic diagram of the internal structure of a dust removal tank provided in an embodiment of the present invention;

[0022] Figure 3 A schematic diagram of the internal structure of the air intake cavity and the exhaust pipe provided in an embodiment of the present invention;

[0023] Figure 4 A schematic diagram of the internal split structure of the filter screen and the positioning brackets on both sides provided in an embodiment of the present invention;

[0024] Figure 5 A schematic diagram of the internal split structure of a positioning block provided in an embodiment of the present invention;

[0025] Figure 6 A schematic diagram of the internal structure of the movable plate and the dust guide pipe provided in an embodiment of the present invention;

[0026] Figure 7 A schematic diagram of the internal structure of the dust guide tube provided in an embodiment of the present invention.

[0027] In the figure:

[0028] 1. Dust removal tank;

[0029] 11. air intake cavity; 111. air intake pipe;

[0030] 12. Exhaust chamber; 121. Exhaust pipe;

[0031] 13. Filter screen; 131. Air guide hole;

[0032] 14. Adjustment chamber; 140. Dust guide pipe; 141. Dust guide funnel; 142. Dust guide chamber; 143. Dust guide frame; 144. Dust exhaust pipe;

[0033] 15. driving motor; 151. driving gear; 152. rotating disk; 153. round pin; 154. driven gear; 155. groove wheel; 156. radial groove;

[0034] 2. Installation cavity; 21. Inner positioning bracket; 22. Counterweight ring; 23. Positioning block; 24. Outer positioning bracket; 25. Positioning ring;

[0035] 26, concave cavity; 261, first positioning hole; 262, second positioning hole; 263, positioning rod;

[0036] 27, rotating rod; 271, second rotating plate; 272, first rotating plate; 273, sliding rod; 274, arc-shaped sliding groove;

[0037] 28. coil spring; 281. positioning socket; 282. positioning card plate;

[0038] 3. movable plate; 30. through cavity; 31. limit slide rail; 32. limit slider; 33. cleaning brush; 34. reciprocating screw; 35. first gear; 36. second gear; 37. bump. DETAILED DESCRIPTION

[0039] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below with reference to specific diagrams. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict.

[0040] See also Figure 1 - Figure 7 The embodiment of the present invention provides a technical solution: a power plant flue gas dust removal device, comprising a dust removal tank 1, wherein an exhaust chamber 12 and an air intake chamber 11 are respectively provided on the upper and lower sides of the inner cavity of the dust removal tank 1, an exhaust pipe 121 connected to the exhaust chamber 12 and an air intake pipe 111 connected to the air intake chamber 11 are fixedly installed on the outer wall of the dust removal tank 1, a plurality of air guide holes 131 are evenly spaced at the lower end of the exhaust chamber 12, a filter screen 13 is provided in the exhaust chamber 12, the lower end of the filter screen 13 and the upper end of the air guide hole 131 are mutually attached, an adjustment chamber 14 is provided at the lower side of the air intake chamber 11, a dust guide pipe 140 is rotatably installed in the adjustment chamber 14, the dust guide pipe 140 is arranged in an S shape, a dust guide funnel 141 is fixedly installed on the upper end of the dust guide pipe 140, and the dust guide funnel 141 corresponds to the lower end of the air guide hole 131. A dust guide cavity 142 is provided on the periphery of the dust guide tube 140, a dust exhaust pipe 144 passes through the adjusting cavity 14, a dust guide frame 143 is fixedly installed on the inner end of the dust exhaust pipe 144, the dust guide cavity 142 is rotatably installed in the dust guide frame 143, a groove wheel 155 is fixedly installed on the periphery of the dust guide tube 140, radial grooves 156 corresponding to the number of air guide holes 131 are provided on the periphery of the groove wheel 155, a rotating disk 152 is rotatably installed in the adjusting cavity 14, a round pin 153 plug-connected to the radial groove 156 is fixedly installed on the periphery of the upper end of the rotating disk 152, a driving motor 15 is fixedly installed in the adjusting cavity 14, a driven gear 154 is fixedly installed on the lower side of the rotating disk 152, and a driving gear 151 meshingly connected to the driven gear 154 is fixedly installed on the outer end of the driving motor 15 through its output shaft.

[0041] Working principle: When in use, the driving motor 15 is started, and the driving gear 151 and the driven gear 154 are meshed and connected, so that the driving motor 15 can drive the rotating disk 152 to rotate with it through its output shaft, and the rotating rotating disk 152 can drive the groove wheel 155 to rotate intermittently through the plug connection between the round pin 153 and the radial groove 156, so that the dust guide funnel 141 at the upper end of the dust guide tube 140 can be aligned with the lower ends of each air guide hole 131 in turn;

[0042] Through the air inlet pipe 111, in conjunction with an external fan, smoke containing dust can be injected into the air inlet chamber 11 and upwardly enter the exhaust chamber 12. In conjunction with the exhaust pipe 121, the smoke can be discharged to the outside. When the smoke passes through the filter 13, the dust in the smoke can be filtered through the filter 13.

[0043] When the dust guide funnel 141 is aligned with the air guide hole 131, the air guide hole 131 is sealed, so that the smoke cannot enter the air guide hole 131, but the outer periphery of the filter screen 13 at the upper end of the air guide hole 131 is not sealed, which causes the smoke inside the exhaust pipe 121 to enter the filter screen 13 from the outside to the inside, thereby forming a pressure difference change on the inside and outside of the filter screen 13, which can push the dust inside the filter screen 13 inward, and discharge the dust outward through the dust guide pipe 140, the dust guide cavity 142, the dust guide frame 143 and the dust exhaust pipe 144, and clean the dust on the inner wall of the filter screen 13 to avoid dust clogging the inner wall of the filter screen 13, thereby ensuring the filtering effect of the filter screen 13 on the dust.

[0044] In another embodiment provided by the present invention, an inner positioning bracket 21 is fixedly installed on the periphery of the upper end of the air guide hole 131, an installation cavity 2 corresponding to the position of each air guide hole 131 is opened at the upper end of the exhaust cavity 12, a positioning block 23 is inserted and installed in the installation cavity 2, an outer positioning bracket 24 is fixedly installed at the lower end of the positioning block 23, the filter screen 13 is arranged between the inner positioning bracket 21 and the outer positioning bracket 24, a counterweight ring 22 is fixedly installed at the lower end of the filter screen 13, and a positioning ring 25 that fits the upper end of the counterweight ring 22 is fixedly installed at the lower end of the outer positioning bracket 24; a concave cavity 26 is opened at the upper end of the positioning block 23, a first positioning hole 261 is opened on the periphery of the concave cavity 26, a second positioning hole 262 is opened on the inner wall of the installation cavity 2, and the first positioning hole 261 and the second positioning hole 262 are connected to each other. A positioning rod 263 is installed in the hole 262; a rotating rod 27 is rotatably installed in the concave cavity 26, and a first rotating plate 272 and a second rotating plate 271 are fixedly installed on the upper and lower sides of the outer periphery of the rotating rod 27, respectively. The upper end of the first rotating plate 272 is in contact with the upper end of the concave cavity 26, and a sliding rod 273 is fixedly installed on the lower end of the positioning rod 263. An arc-shaped sliding groove 274 slidably connected to the sliding rod 273 is provided on the upper end of the second rotating plate 271; the lower end of the positioning rod 263 is inclined inwardly arranged, a positioning hole 281 is provided in the rotating rod 27, and a coil spring 28 inserted into the positioning hole 281 is sleeved on the outer periphery of the rotating rod 27, and a positioning clamping plate 282 is fixedly installed on the inner wall of the concave cavity 26, and the outer end of the coil spring 28 is clamped with the positioning clamping plate 282.

[0045] Specifically, when the filter 13 needs to be installed, the filter 13 is placed on the upper end of the inner positioning bracket 21 through the installation cavity 2, and the lower end of the filter 13 can be driven to move downward through the counterweight ring 22 at the lower end of the filter 13, so that the filter 13 can be installed on the outer periphery of the inner positioning bracket 21;

[0046] Then, the outer positioning bracket 24 is installed on the periphery of the filter screen 13 through the installation cavity 2. When the outer end of the positioning rod 263 contacts the inner wall of the installation cavity 2, the positioning rod 263 can be pushed into the first positioning hole 261 because the lower end of the positioning rod 263 is inclined inwardly arranged. The positioning rod 263 that contracts inwardly can drive the second rotating plate 271 to rotate through the sliding connection between the sliding rod 273 and the arc-shaped sliding groove 274.

[0047] When the outer positioning bracket 24 moves downward until the first positioning hole 261 and the second positioning hole 262 are aligned with each other, the inner wall of the installation cavity 2 loses the pressing effect on the positioning rod 263, and under the action of the coil spring 28 restoring the deformation, the second rotating plate 271 can be driven to rotate in the opposite direction, thereby driving the positioning rod 263 to move outward until it is simultaneously plugged into the first positioning hole 261 and the second positioning hole 262, so that the positioning block 23 can be positioned in the installation cavity 2. At this time, the lower end of the positioning ring 25 and the upper end of the counterweight ring 22 are in contact with each other, so that the filter screen 13 can be positioned between the inner positioning bracket 21 and the outer positioning bracket 24;

[0048] When the filter 13 needs to be disassembled, the first rotating plate 272 is rotated, and the sliding connection between the arc-shaped slide groove 274 and the slide rod 273 can drive the positioning rod 263 to retract inward until it is separated from the second positioning hole 262. The positioning block 23 and the external positioning bracket 24 can be taken out in the installation cavity 2, and the filter 13 can be disassembled.

[0049] In another embodiment provided by the present invention, a movable plate 3 is slidably installed in the exhaust chamber 12, a through cavity 30 is opened on the periphery of the movable plate 3, a cleaning brush 33 is fixedly installed on the inner wall of the through cavity 30, and the cleaning brush 33 is in contact with the periphery of the filter screen 13; a limiting slide rail 31 is fixedly installed in the concave cavity 26, and a limiting slider 32 slidably connected to the limiting slide rail 31 is fixedly installed on the periphery of the movable plate 3; a second gear 36 is rotatably installed at the bottom of the inner cavity of the adjusting chamber 14, and the dust guide tube 140 is rotatably installed on the upper end of the second gear 36, and a reciprocating screw 34 is fixedly installed on the upper end of the second gear 36, a protrusion 37 slidably connected to the periphery of the reciprocating screw 34 is fixedly installed in the middle part of the movable plate 3, and a first gear 35 meshingly connected to the second gear 36 is fixedly installed at the lower end of the rotating disk 152.

[0050] Specifically, when the driving motor 15 is started, the dust guide tube 140 is driven to rotate intermittently through the meshing connection between the driving gear 151 and the driven gear 154 and the plug-in connection between the round pin 153 and the radial groove 156. The rotating rotating disk 152 can drive the reciprocating screw 34 to rotate at a uniform speed in one direction through the meshing connection between the first gear 35 and the first gear 35. Under the restriction of the movement direction of the movable plate 3 by the sliding connection between the limiting slide rail 31 and the limiting slide block 32, the rotating reciprocating screw 34 can drive the movable plate 3 to reciprocate up and down through the sliding connection between the movable plate 3 and the protrusion 37, so that the cleaning brush 33 that reciprocates up and down on the periphery of the filter 13 can push the dust adhering to the inner wall of the filter 13 inward, thereby further improving the cleaning effect of the inner wall of the filter 13.

[0051] The basic principles, main features and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and the description in the specification are only to illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A power plant flue gas dust removal device, comprising a dust removal tank (1), characterized in that: An exhaust cavity (12) and an air intake cavity (11) are respectively provided at the upper and lower sides of the inner cavity of the dust removal tank (1); an exhaust pipe (121) connected to the exhaust cavity (12) and an air intake pipe (111) connected to the air intake cavity (11) are fixedly mounted on the outer wall of the dust removal tank (1); a plurality of air guide holes (131) are provided at equal intervals at the lower end of the exhaust cavity (12); a filter screen (13) is provided in the exhaust cavity (12); and the lower end of the filter screen (13) is connected to the exhaust cavity (12). The upper ends of the air guide holes (131) are fitted together, an adjusting chamber (14) is provided at the lower side of the air inlet chamber (11), a dust guide tube (140) is rotatably installed in the adjusting chamber (14), the dust guide tube (140) is arranged in an S shape, a dust guide funnel (141) is fixedly installed at the upper end of the dust guide tube (140), the dust guide funnel (141) corresponds to the lower end of the air guide hole (131), and a dust guide chamber (141) is provided at the outer periphery of the dust guide tube (140). 42), a dust exhaust pipe (144) passes through the regulating chamber (14), a dust guide frame (143) is fixedly installed at the inner end of the dust exhaust pipe (144), the dust guide chamber (142) is rotatably installed in the dust guide frame (143), a groove wheel (155) is fixedly installed on the periphery of the dust guide pipe (140), and radial grooves (156) corresponding to the number of air guide holes (131) are opened on the periphery of the groove wheel (155), and the regulating chamber (14) is rotatably installed in the dust guide frame (143). A rotating disk (152) is provided, a round pin (153) plug-connected to a radial groove (156) is fixedly installed on the outer periphery of the upper end of the rotating disk (152), a driving motor (15) is fixedly installed in the regulating cavity (14), a driven gear (154) is fixedly installed on the lower side of the rotating disk (152), and a driving gear (151) meshingly connected to the driven gear (154) is fixedly installed on the outer end of the driving motor (15) through its output shaft.

2. The power plant flue gas dust removal equipment according to claim 1, characterized in that: An inner positioning bracket (21) is fixedly mounted on the outer periphery of the upper end of the air guide hole (131); an installation cavity (2) corresponding to the position of each air guide hole (131) is opened at the upper end of the exhaust cavity (12); a positioning block (23) is inserted and mounted in the installation cavity (2); an outer positioning bracket (24) is fixedly mounted on the lower end of the positioning block (23); the filter screen (13) is arranged between the inner positioning bracket (21) and the outer positioning bracket (24); a counterweight ring (22) is fixedly mounted on the lower end of the filter screen (13); and a positioning ring (25) that fits the upper end of the counterweight ring (22) is fixedly mounted on the lower end of the outer positioning bracket (24).

3. The power plant flue gas dust removal equipment according to claim 2, characterized in that: A concave cavity (26) is formed at the upper end of the positioning block (23), a first positioning hole (261) is formed at the periphery of the concave cavity (26), a second positioning hole (262) is formed at the inner wall of the installation cavity (2), and positioning rods (263) are inserted and installed in the first positioning hole (261) and the second positioning hole (262).

4. The power plant flue gas dust removal equipment according to claim 3, characterized in that: A rotating rod (27) is rotatably installed in the concave cavity (26), and a first rotating plate (272) and a second rotating plate (271) are fixedly installed on the upper and lower sides of the outer periphery of the rotating rod (27), respectively. The upper end of the first rotating plate (272) is in contact with the upper end of the concave cavity (26), and a sliding rod (273) is fixedly installed at the lower end of the positioning rod (263). The upper end of the second rotating plate (271) is provided with an arc-shaped sliding groove (274) slidably connected to the sliding rod (273).

5. The power plant flue gas dust removal equipment according to claim 4, characterized in that: The lower end of the positioning rod (263) is tilted inwardly, a positioning hole (281) is provided in the rotating rod (27), a coil spring (28) plugged into the positioning hole (281) is sleeved on the outer periphery of the rotating rod (27), a positioning clamping plate (282) is fixedly mounted on the inner wall of the concave cavity (26), and the outer end of the coil spring (28) is clamped into the positioning clamping plate (282).

6. The power plant flue gas dust removal equipment according to claim 4, characterized in that: A movable plate (3) is slidably mounted in the exhaust cavity (12), a through cavity (30) is provided on the periphery of the movable plate (3), a cleaning brush (33) is fixedly mounted on the inner wall of the through cavity (30), and the cleaning brush (33) is in contact with the periphery of the filter screen (13).

7. The power plant flue gas dust removal equipment according to claim 6, characterized in that: A limiting slide rail (31) is fixedly installed in the concave cavity (26), and a limiting sliding block (32) slidably connected to the limiting slide rail (31) is fixedly installed on the periphery of the movable plate (3).

8. The power plant flue gas dust removal equipment according to claim 1, characterized in that: A second gear (36) is rotatably mounted on the bottom of the inner cavity of the regulating cavity (14); the dust guide tube (140) is rotatably mounted on the upper end of the second gear (36); a reciprocating screw (34) is fixedly mounted on the upper end of the second gear (36); a protrusion (37) slidably connected to the outer periphery of the reciprocating screw (34) is fixedly mounted in the middle of the movable plate (3); and a first gear (35) meshingly connected thereto is fixedly mounted on the lower end of the rotating disk (152).

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